Don't break a promise even for one time, or people will not trust you again.
2
我建议以最快的速度鼓励不能给予回报的人——这样才不会失信于人。
For the maximum velocity, I'm suggesting that you give your encouragement to someone who can't return the favor-it's a distinction that won't be lost on the recipient.
3
他说,默多克已失信于人,贬低了新闻界标准,但的确使新闻业发生了彻底的改变。
Mr Murdoch, he says, has broken his word and debased journalistic standards. But he has also revolutionised an industry.